IOL reports that she's even applying to use tax-payer's money for a National Intelligence Service investigation to track the blogger down.
Fortunately, we live in a free and democratic country where this will not get very far. Perhaps, as Angus points out, MP De Lille will find a more sympathic government in communist China or North Korea?
The point of citizen journalism, as opposed to regulated mainstream media is free and natural expression of ideas by ordinary people (i.e. voting constituents). If these issues with Grindrod are being raised online, people are probably talking about them in natural conversation too. She could gain alot more benefit by paying attention to what is being said, and possibly responding in a public forum to the issues that have been raised. This is the meaning of "join the conversation".
This is why your fellow parliamentarians Helen Zille and Ebrahim Rasool from the DA and ANC respectively have social-media profiles... And I congratulate them for that.